Booster



FIG. 1 is a perspective view of a booster of a new design;

FIG. 2 is a front view of the booster of the new design;

FIG. 3 is a rear view of the booster of the new design;

FIG. 4 is a top view of the booster of the new design;

FIG. 5 is a bottom view of the booster of the new design;

FIG. 6 is a left-side view of the booster of the new design;

FIG. 7 is a right-side view of the booster of the new design; and,

FIG. 8 is a perspective view of the booster of the new design, with a feeding tray provided thereon. 

The ornamental design for a booster, as shown. 